#define _CRT_SECURE_NO_WARNINGS 1



#include<stdio.h>


int main()
{
	char fuhao = 0;
	int a = 0, b = 0;
	scanf("%c %d %d", &fuhao, &a, &b);
	if (fuhao == '+')
		printf("%d\n", a + b);
	else if (fuhao == '-')
		printf("%d\n", a - b);
	else if (fuhao == '*')
		printf("%d\n", a * b);
	else if (fuhao == '/')
		printf("%d\n", a / b);

	return 0;
}